High alignment tolerance coupling scheme for multichannel laser diode/singlemode fibre modules using a tapered waveguide array

摘要

A high alignment tolerance scheme for coupling a laser diode array to a singlemode fibre array using a tapered waveguide array as an intermediate coupling device is proposed. The numerical results show a 0.5 dB lateral alignment tolerance of +or-6 mu m and maximum coupling efficiency of -8.6 dB.